Here it is, a 3D model of the first iteration of CESTUS 1. The name is an acronym for:

Common

Expendable

Space

Transportation for

Ultra-small

Satellites

The result of my first run of design work, its 8 inches in diameter, roughly 12 feet long, weighing in a some 180 lbs (82 kgs). Primarily 6061 aluminum, lox / propane propellants and ablative engines. It has a payload of a whopping 1 lb (455 g)!!!!! Now, on to the next iteration.